[INFO] cloning repository https://github.com/LaSpruca/snake_piston
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LaSpruca/snake_piston" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLaSpruca%2Fsnake_piston", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLaSpruca%2Fsnake_piston'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fbc055e0d15221392024b38a9e4bb129b3366f7c
[INFO] checking LaSpruca/snake_piston against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLaSpruca%2Fsnake_piston" "/workspace/builds/worker-95/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-95/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LaSpruca/snake_piston on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LaSpruca/snake_piston
[INFO] finished tweaking git repo https://github.com/LaSpruca/snake_piston
[INFO] tweaked toml for git repo https://github.com/LaSpruca/snake_piston written to /workspace/builds/worker-95/source/Cargo.toml
[INFO] crate git repo https://github.com/LaSpruca/snake_piston already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded piston_window v0.116.0
[INFO] [stderr]   Downloaded piston2d-opengl_graphics v0.76.0
[INFO] [stderr]   Downloaded piston2d-gfx_graphics v0.72.0
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[INFO] [stdout] 5a63d3663dd3ddb4893881e67ee613544f576731f22c78aa57667816c169d3cc
[INFO] running `Command { std: "docker" "start" "-a" "5a63d3663dd3ddb4893881e67ee613544f576731f22c78aa57667816c169d3cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a63d3663dd3ddb4893881e67ee613544f576731f22c78aa57667816c169d3cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a63d3663dd3ddb4893881e67ee613544f576731f22c78aa57667816c169d3cc", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 009dcda03b963743b181729e46a3572674775e3810b272c65d869ea3b6873bf5
[INFO] running `Command { std: "docker" "start" "-a" "009dcda03b963743b181729e46a3572674775e3810b272c65d869ea3b6873bf5", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
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[INFO] [stderr]    Compiling syn v1.0.48
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[INFO] [stderr]    Compiling serde_derive v1.0.117
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[INFO] [stderr]    Compiling cc v1.0.62
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[INFO] [stderr]     Checking interpolation v0.2.0
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[INFO] [stderr]     Checking piston-shaders_graphics2d v0.4.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
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[INFO] [stderr]     Checking piston2d-opengl_graphics v0.76.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.72.0
[INFO] [stderr]     Checking winit v0.19.5
[INFO] [stderr]     Checking pistoncore-window v0.47.0
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[INFO] [stderr]     Checking snake_piston v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Glyphs`
[INFO] [stdout]  --> src/main.rs:8:45
[INFO] [stdout]   |
[INFO] [stdout] 8 | use piston_window::{PistonWindow as Window, Glyphs};
[INFO] [stdout]   |                                             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RenderArgs`, `UpdateArgs`
[INFO] [stdout]   --> src/main.rs:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 | use piston::input::{RenderArgs, RenderEvent, UpdateArgs, UpdateEvent};
[INFO] [stdout]    |                     ^^^^^^^^^^               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell`, `Color`, `GameState`
[INFO] [stdout]   --> src/main.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::util::{Color, Cell, GameState, Direction};
[INFO] [stdout]    |                   ^^^^^  ^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::prelude::ThreadRng`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use rand::prelude::ThreadRng;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use rand::Rng;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `graphics::color::WHITE`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use graphics::color::WHITE;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Glyphs`
[INFO] [stdout]  --> src/main.rs:8:45
[INFO] [stdout]   |
[INFO] [stdout] 8 | use piston_window::{PistonWindow as Window, Glyphs};
[INFO] [stdout]   |                                             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RenderArgs`, `UpdateArgs`
[INFO] [stdout]   --> src/main.rs:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 | use piston::input::{RenderArgs, RenderEvent, UpdateArgs, UpdateEvent};
[INFO] [stdout]    |                     ^^^^^^^^^^               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell`, `Color`, `GameState`
[INFO] [stdout]   --> src/main.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::util::{Color, Cell, GameState, Direction};
[INFO] [stdout]    |                   ^^^^^  ^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::prelude::ThreadRng`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use rand::prelude::ThreadRng;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use rand::Rng;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `graphics::color::WHITE`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use graphics::color::WHITE;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/util/color.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub const fn new(red: u8, green: u8, blue: u8, alpha: u8) -> Color {
[INFO] [stdout]   |                  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rgba`
[INFO] [stdout]   --> src/util/color.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn rgba(&self) -> [f32; 4] {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `WHITE`
[INFO] [stdout]   --> src/util/color.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub const WHITE: Color = Color::new_rgb(255, 255, 255);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/util/color.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub const fn new(red: u8, green: u8, blue: u8, alpha: u8) -> Color {
[INFO] [stdout]   |                  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `PINK`
[INFO] [stdout]   --> src/util/color.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub const PINK: Color = Color::new_rgb(255, 192, 203);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `alpha`
[INFO] [stdout]  --> src/util/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     alpha: u8
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rgba`
[INFO] [stdout]   --> src/util/color.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn rgba(&self) -> [f32; 4] {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `glyphs`
[INFO] [stdout]   --> src/app.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     glyphs: Glyphs,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `WHITE`
[INFO] [stdout]   --> src/util/color.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub const WHITE: Color = Color::new_rgb(255, 255, 255);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `PINK`
[INFO] [stdout]   --> src/util/color.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub const PINK: Color = Color::new_rgb(255, 192, 203);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `alpha`
[INFO] [stdout]  --> src/util/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     alpha: u8
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `glyphs`
[INFO] [stdout]   --> src/app.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     glyphs: Glyphs,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.88s
[INFO] running `Command { std: "docker" "inspect" "009dcda03b963743b181729e46a3572674775e3810b272c65d869ea3b6873bf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "009dcda03b963743b181729e46a3572674775e3810b272c65d869ea3b6873bf5", kill_on_drop: false }`
[INFO] [stdout] 009dcda03b963743b181729e46a3572674775e3810b272c65d869ea3b6873bf5